Documentation/kernel-parameters.txt: update 'isolcpus' kernel option

[linux-2.6-omap-h63xx.git] / fs / ocfs2 / dlm / dlmcommon.h

diff --git a/fs/ocfs2/dlm/dlmcommon.h b/fs/ocfs2/dlm/dlmcommon.h
index 9843ee17ea2783015244a9cbfb72f0dbb2190f10..d5a86fb81a4902adff4426b552cd3ae19a5d926d 100644 (file)
--- a/fs/ocfs2/dlm/dlmcommon.h
+++ b/fs/ocfs2/dlm/dlmcommon.h
@@ -49,6 +49,41 @@
 /* Intended to make it easier for us to switch out hash functions */
 #define dlm_lockid_hash(_n, _l) full_name_hash(_n, _l)
 
+enum dlm_mle_type {
+       DLM_MLE_BLOCK,
+       DLM_MLE_MASTER,
+       DLM_MLE_MIGRATION
+};
+
+struct dlm_lock_name {
+       u8 len;
+       u8 name[DLM_LOCKID_NAME_MAX];
+};
+
+struct dlm_master_list_entry {
+       struct list_head list;
+       struct list_head hb_events;
+       struct dlm_ctxt *dlm;
+       spinlock_t spinlock;
+       wait_queue_head_t wq;
+       atomic_t woken;
+       struct kref mle_refs;
+       int inuse;
+       unsigned long maybe_map[BITS_TO_LONGS(O2NM_MAX_NODES)];
+       unsigned long vote_map[BITS_TO_LONGS(O2NM_MAX_NODES)];
+       unsigned long response_map[BITS_TO_LONGS(O2NM_MAX_NODES)];
+       unsigned long node_map[BITS_TO_LONGS(O2NM_MAX_NODES)];
+       u8 master;
+       u8 new_master;
+       enum dlm_mle_type type;
+       struct o2hb_callback_func mle_hb_up;
+       struct o2hb_callback_func mle_hb_down;
+       union {
+               struct dlm_lock_resource *res;
+               struct dlm_lock_name name;
+       } u;
+};
+
 enum dlm_ast_type {
        DLM_AST = 0,
        DLM_BAST,
@@ -101,6 +136,7 @@ struct dlm_ctxt
        struct list_head purge_list;
        struct list_head pending_asts;
        struct list_head pending_basts;
+       struct list_head tracking_list;
        unsigned int purge_count;
        spinlock_t spinlock;
        spinlock_t ast_lock;
@@ -122,6 +158,9 @@ struct dlm_ctxt
        atomic_t remote_resources;
        atomic_t unknown_resources;
 
+       struct dlm_debug_ctxt *dlm_debug_ctxt;
+       struct dentry *dlm_debugfs_subroot;
+
        /* NOTE: Next three are protected by dlm_domain_lock */
        struct kref dlm_refs;
        enum dlm_ctxt_state dlm_state;
@@ -176,6 +215,7 @@ struct dlm_mig_lockres_priv
 {
        struct dlm_lock_resource *lockres;
        u8 real_master;
+       u8 extra_ref;
 };
 
 struct dlm_assert_master_priv
@@ -269,6 +309,9 @@ struct dlm_lock_resource
        struct list_head dirty;
        struct list_head recovering; // dlm_recovery_ctxt.resources list
 
+       /* Added during init and removed during release */
+       struct list_head tracking;      /* dlm->tracking_list */
+
        /* unused lock resources have their last_used stamped and are
         * put on a list for the dlm thread to run. */
        unsigned long    last_used;
@@ -602,17 +645,19 @@ enum dlm_query_join_response_code {
        JOIN_PROTOCOL_MISMATCH,
 };
 
+struct dlm_query_join_packet {
+       u8 code;        /* Response code.  dlm_minor and fs_minor
+                          are only valid if this is JOIN_OK */
+       u8 dlm_minor;   /* The minor version of the protocol the
+                          dlm is speaking. */
+       u8 fs_minor;    /* The minor version of the protocol the
+                          filesystem is speaking. */
+       u8 reserved;
+};
+
 union dlm_query_join_response {
        u32 intval;
-       struct {
-               u8 code;        /* Response code.  dlm_minor and fs_minor
-                                  are only valid if this is JOIN_OK */
-               u8 dlm_minor;   /* The minor version of the protocol the
-                                  dlm is speaking. */
-               u8 fs_minor;    /* The minor version of the protocol the
-                                  filesystem is speaking. */
-               u8 reserved;
-       } packet;
+       struct dlm_query_join_packet packet;
 };
 
 struct dlm_lock_request
@@ -960,9 +1005,16 @@ static inline void __dlm_wait_on_lockres(struct dlm_lock_resource *res)
                                          DLM_LOCK_RES_MIGRATING));
 }
 
+/* create/destroy slab caches */
+int dlm_init_master_caches(void);
+void dlm_destroy_master_caches(void);
+
+int dlm_init_lock_cache(void);
+void dlm_destroy_lock_cache(void);
 
 int dlm_init_mle_cache(void);
 void dlm_destroy_mle_cache(void);
+
 void dlm_hb_event_notify_attached(struct dlm_ctxt *dlm, int idx, int node_up);
 int dlm_drop_lockres_ref(struct dlm_ctxt *dlm,
                         struct dlm_lock_resource *res);